J.09_20130219_GW_Data_IBWC_Data_Cvr_Ltr.pdf

Malcolm Pirnie, Inc.

211 N. Florence St., Suite 202

El Paso, Texas 79901 T: 915.533.9025 F: 915.533.9045 www.pirnie.com

Solutions for LifeTM

February 19, 2013

Mr. Cesar Boisselier Boundary and Realty Officer United States International Boundary & Water Commission 4171 North Mesa Street, Suite C-100 El Paso, TX 79902

Subject: Summary of Groundwater Analytical Data for the Installed Monitoring Wells Located on USIBWC Property International Boundary and Water Commission, American Dam 2616 Paisano Drive, El Paso, Texas

Dear Mr. Boisselier:

On August/September 2012, Malcolm Pirnie, Inc. performed the semiannual monitoring event of groundwater monitoring wells located on the former ASARCO El Paso Smelter site. The groundwater sampling event included monitoring of eight groundwater monitoring wells located on property owned by the International Boundary and Water Commission (IBWC): MW-1 and MW-2 and the three dual-nested monitoring wells, installed on March 2012, MW9D, MW9S, MW10D, MW10S, MW11D, and MW11S. The locations of the sampled groundwater monitoring wells are shown in Figure 1.

A total of eight groundwater samples were collected on August 23 and 24, 2012 and analyzed for total and dissolved metals (antimony, arsenic, barium, cadmium, chromium, cobalt, copper, iron, lead, mercury, molybdenum, nickel, selenium, thallium, and zinc) and water quality parameters (aluminum, calcium, magnesium, manganese, potassium, sodium, total organic carbon, total suspended soils, total dissolved soils, alkalinity, chloride, nitrate nitrite, sulfate, fluoride, and sulfide). The analytical results are summarized in Table 1.

Arsenic, molybdenum, selenium, and fluoride were detected at concentrations greater than the Texas Risk Reduction Program (TRRP) commercial/industrial protective concentration levels (PCLs) for groundwater (Table 1). The remaining analytes were either not detected or were detected below the TRRP commercial/industrial PCLs. The laboratory analytical reports are included in Appendix A. Arsenic and molybdenum were detected above the PCL (0.010 milligram per liter [mg/L] and 0.37 mg/L, respectively) at eight of the eight groundwater http://www.clker.com/cliparts/d/d/9/2/1194984904195212103recycling_symbol_a.j._as_01.svg.med.png

Mr. Cesar Boisselier International Boundary and Water Commission, American Dam

February 19, 2013 monitoring wells. Selenium was detected above the PCL (0.050 mg/L) in seven of the eight groundwater monitoring wells. Fluoride was detected above the PCL (4 mg/L) at one of the eight monitoring wells.

The analytical results from the August/September 2012 groundwater sampling event are consistent to the previously submitted analytical results from February/March 2012 sampling event, with the exception of total antimony at groundwater monitoring well MW-1 and total selenium at groundwater monitoring well MW-2. The total antimony concentration at MW-1 decreased from above the PCL during the February/March 2012 sampling event to a concentration below the PCL (0.006 mg/L) during the August/September 2012 sampling event.

The total selenium concentration at MW-2 was detected above the PCL (0.05 mg/L) during the August/September 2012 analytical event compared to the February/March 2012 analytical result, where the total selenium concentration was detected below the PCL.

The eight monitoring wells installed on IBWC property are monitored on a semiannual basis as part of Interim Site Monitoring Program of groundwater and surface water. As additional data is collected at these monitoring wells we will provide the data to you. Starting during the spring 2013 sampling event, groundwater samples will be sampled for total concentrations only.

If you have any questions concerning the information submitted, please call the undersigned at

(512) 527-6101.

Very truly yours, MALCOLM PIRNIE, INC.

Alicia Fogg, PE Project Engineer

Project 6835001

Cc: Roberto Puga and Mark Landress (Texas Custodial Trust), Gilbert Anaya (IBWC), Scott Brown (Malcolm Pirnie)

Attachments:

Figure 1 – Monitoring Well Locations Table 1 – Summary Lab Results Appendix A – Laboratory Analytical Report http://www.clker.com/cliparts/d/d/9/2/1194984904195212103recycling_symbol_a.j._as_01.svg.med.png

Attachments

! A

! A

! A ! A

! A! A

! A! A

MW-1

MW-2

MW-9D

MW-9S

MW-10S MW-10S

MW-11S MW-11D

Texas Custodial Trust El Paso Smelter Site

FIGURE 1

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211 N. Florence St.

Suite 202 El Paso, TX 79901

Legend

!A Sampled Groundwater Monitoring Wells

Property Boundary ³

0 80 160

Feet

SCALE 1"=80'

LOCATION MAP

Rio Grande

American Canal

FEBRUARY 2013

Table 1 IBWC Groundwater Monitoring Wells

El Paso, Texas

Total Dissolved Total Dissolved Total Dissolved Total Dissolved Total Dissolved Total Dissolved Total Dissolved Total Dissolved Metals (mg/L) Antimony 0.006 0.00528 0.00524 <0.00161 <0.00161 0.00340 J 0.00334 J <0.00161 <0.00161 <0.00161 <0.00161 <0.00161 <0.00161 <0.00161 <0.00161 <0.00161 <0.00161 Arsenic 0.01 1.15 1.12 0.796 0.803 0.809 0.787 0.688 0.666 0.344 0.381 1.13 1.10 0.0599 0.0574 0.296 0.296 Barium 2 0.0409 0.0405 0.0595 0.0608 0.0260 0.0248 0.0299 0.0303 0.0322 0.0359 0.0232 0.0229 0.0282 0.0275 0.023 0.0234 Cadmium 0.005 <0.000854 <0.000854 <0.000854 <0.000854 <0.000854 <0.000854 <0.000854 <0.000854 <0.000854 <0.000854 <0.000854 <0.000854 <0.000854 <0.000854 <0.000854 <0.000854 Chromium 0.1 <0.00140 <0.00140 <0.00140 <0.00140 <0.00140 <0.00140 <0.00140 <0.00140 <0.00140 <0.00140 <0.00140 <0.00140 <0.00140 <0.00140 <0.00140 <0.00140 Cobalt 0.022 <0.00136 <0.00136 <0.00136 <0.00136 <0.00136 <0.00136 <0.00136 <0.00136 <0.00136 <0.00136 <0.00136 <0.00136 <0.00136 <0.00136 <0.00136 <0.00136 Copper 1.3 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 Iron -- <0.101 <0.101 <0.101 <0.101 <0.101 <0.101 <0.101 <0.101 <0.101 <0.101 <0.101 <0.101 <0.101 <0.101 0.168 J 0.170 J Lead 0.015 <0.000733 <0.000733 <0.000733 <0.000733 <0.000733 <0.000733 <0.000733 <0.000733 <0.000733 <0.000733 0.00102 J <0.000733 <0.000733 <0.000733 <0.000733 <0.000733 Mercury 0.002 <0.000130 <0.000130 <0.000130 <0.000130 <0.000130 <0.000130 <0.000130 <0.000130 <0.000130 <0.000130 <0.000130 <0.000130 <0.000130 <0.000130 <0.000130 <0.000130 Molybdenum 0.37 0.474 0.445 0.708 0.732 0.481 0.468 0.513 0.512 0.537 0.561 0.553 0.547 0.684 0.660 0.624 0.619 Nickel 1.5 0.00363 J 0.00366 J 0.00459 J 0.00437 J 0.00379 J 0.00348 J <0.00217 0.00242 J 0.00237 J 0.00246 J <0.00217 <0.00217 0.00234 J <0.00217 <0.00217 <0.00217 Selenium 0.05 0.0994 0.0925 0.00546 0.00506 0.0719 0.719 0.146 0.150 0.151 0.163 0.136 0.134 0.0432 0.0414 0.0509 0.0498 Thallium 0.002 <0.000693 <0.000693 <0.000693 <0.000693 <0.000693 <0.000396 <0.000693 <0.000396 <0.000693 0.00209 <0.000693 0.000954 J <0.000693 <0.000693 <0.000693 <0.000693 Zinc 22 <0.00355 <0.00355 <0.00355 <0.00355 <0.00355 <0.00355 <0.00355 <0.00355 <0.00355 <0.0173 J <0.00355 <0.00355 <0.00355 <0.00355 <00355 <0.00355 Water Quality Parameters (mg/L) Aluminum 73 Calcium -- Chloride -- Magnesium -- Manganese 10 Potassium -- Sodium -- Fluoride 4 Nitrate Nitrite 10 Sulfate -- Sulfide -- Total Alkalinity -- Total Dissolved Solids -- Total Organic Carbon -- Total Suspended Solids -- Notes:

Bolded value = Result exceeded TRRP Protective Concentration Limit TRRP Protective Concentration Limit = GWGWing based on TRRP Table 3 for commercial/industrial sources, Class 1 groundwater source mg/L = milligrams per liter "--" = Not applicable < = Analyte not detected above listed sample detection limit J = Estimated value UJ = Estimated reporting limit

2.752.70 <3.00 3.60 <3.00 <3.00 <3.00<3.00

2.02 2.58 2.84 2.86

356359 2,270 2,990 2,530 2,610 2,4002,440 318 354 356 369

1,1101,220 <0.0131 <0.0131 0.0320 J 0.0370 J <0.0131<0.0131

988 801 998 906

68.6

63.9

0.455 J0.335 J2.12 3.43 1.63 2.84

MW-11S MW-11D

<3.00

1,150 <0.0131

2,630 2.76

3.42 <0.800

MW-10DMW-10S

4.01 3.68

55.7 0.0859

294 305 313340

3.443.182.95 3.02

MW-9S MW-9D

287 257236269

MW-1 MW-2

<0.0225 <0.0225

<0.0225

3.27

<3.00

<0.0131

2,240 1.98

Parameters

TRRP

Level

3.22

0.183 49.4

0.337 41.8

<0.0225

89.3

0.0324 J

52.7 806 795

<0.0225

70.4

0.0198 J

45.4

<0.0225

0.0694

46.4 J

<0.0225

58.7 0.143 52.1

<0.0225

62.3 0.113 37.9

Appendix A

ANALYTICAL REPORT

TestAmerica Laboratories, Inc.

TestAmerica Corpus Christi 1733 N. Padre Island Drive Corpus Christi, TX 78408 Tel: (361)289-2673

TestAmerica Job ID: 560-34376-1 TestAmerica Sample Delivery Group: August 2012 Client Project/Site: 06835001.2012.07F52/ASARCO

For:

Malcolm Pirnie, Inc. Invoice to Arcadis 211 North Florence Street Suite 202 El Paso, Texas 79901

Attn: Ms. Marla Miller

Authorized for release by:

9/10/2012 4:36:44 PM

Timothy Kellogg Lab Director tim.kellogg@testamericainc.com

The test results in this report meet all 2003 NELAC and 2009 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page.

This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature.

Results relate only to the items tested and the sample(s) as received by the laboratory.

https://secure.testamericainc.com/TotalAccess/login.aspx http://www.testamericainc.com/AskTheExpert/Expert_index.htm http://www.testamericainc.com mailto:tim.kellogg@testamericainc.com

Definitions/Glossary TestAmerica Job ID: 560-34376-1Client: Malcolm Pirnie, Inc. Invoice to Arcadis

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Qualifiers

Metals

Qualifier Description

U Analyte was not detected at or above the SDL.

Qualifier

J Result is less than the MQL but greater than or equal to the SDL and the concentration is an estimated value.

General Chemistry

Qualifier Description

U Analyte was not detected at or above the SDL.

Qualifier

Glossary

These commonly used abbreviations may or may not be present in this report.

☼ Listed under the "D" column to designate that the result is reported on a dry weight basis

Abbreviation

%R Percent Recovery

CNF Contains no Free Liquid

DL, RA, RE, IN Indicates a Dilution, Reanalysis, Re-extraction, or additional Initial metals/anion analysis of the sample

EDL Estimated Detection Limit

EPA United States Environmental Protection Agency

MDL Method Detection Limit

ML Minimum Level (Dioxin)

ND Not detected at the reporting limit (or MDL or EDL if shown)

PQL Practical Quantitation Limit

QC Quality Control

RL Reporting Limit

RPD Relative Percent Difference, a measure of the relative difference between two points

TEF Toxicity Equivalent Factor (Dioxin)

TEQ Toxicity Equivalent Quotient (Dioxin)

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Client Sample Results

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Lab Sample ID: 560-34376-1Client Sample ID: MW-1 Matrix: WaterDate Collected: 08/23/12 13:15

Date Received: 08/24/12 09:20

Method: 6020 - Metals (ICP/MS)

MQL MDL

Aluminum 0.0225 U 0.0500 0.0225 mg/L 08/24/12 13:00 08/27/12 16:09 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.00500 0.00161 mg/L 08/24/12 13:00 08/27/12 16:09 1Antimony 0.00528

0.00500 0.00109 mg/L 08/24/12 13:00 08/27/12 16:09 1Arsenic 1.15

0.00500 0.000810 mg/L 08/24/12 13:00 08/27/12 16:09 1Barium 0.0409

0.00200 0.000854 mg/L 08/24/12 13:00 08/27/12 16:09 1Cadmium 0.000854 U

0.500 0.198 mg/L 08/24/12 13:00 08/27/12 16:09 1Calcium 139

0.00500 0.00140 mg/L 08/24/12 13:00 08/27/12 16:09 1Chromium 0.00140 U

0.00500 0.00136 mg/L 08/24/12 13:00 08/27/12 16:09 1Cobalt 0.00136 U

0.0100 0.00200 mg/L 08/24/12 13:00 08/27/12 16:09 1Copper 0.00200 U

0.250 0.101 mg/L 08/24/12 13:00 08/27/12 16:09 1Iron 0.101 U

0.00500 0.000733 mg/L 08/24/12 13:00 08/27/12 16:09 1Lead 0.000733 U

0.500 0.113 mg/L 08/24/12 13:00 08/27/12 16:09 1Magnesium 61.0

0.0500 0.0116 mg/L 08/24/12 13:00 08/27/12 16:09 1Manganese 0.183

0.00500 0.00140 mg/L 08/24/12 13:00 08/27/12 16:09 1Molybdenum 0.474

0.00500 0.00217 mg/L 08/24/12 13:00 08/27/12 16:09 1Nickel 0.00363 J

1.00 0.407 mg/L 08/24/12 13:00 08/28/12 18:58 1Potassium 49.4

0.00500 0.00108 mg/L 08/24/12 13:00 08/28/12 18:58 1Selenium 0.0994

1.00 0.727 mg/L 08/24/12 13:00 08/27/12 16:09 1Sodium 394

0.00200 0.000693 mg/L 08/24/12 13:00 08/27/12 16:09 1Thallium 0.000693 U

0.0250 0.00355 mg/L 08/24/12 13:00 08/27/12 16:09 1Zinc 0.00355 U

Method: 6020 - Metals (ICP/MS) - Dissolved

MQL MDL

Antimony 0.00524 0.00500 0.00161 mg/L 08/24/12 13:00 08/27/12 19:50 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.00500 0.00109 mg/L 08/24/12 13:00 08/27/12 19:50 1Arsenic 1.12

0.00500 0.000810 mg/L 08/24/12 13:00 08/27/12 19:50 1Barium 0.0405

0.00200 0.000854 mg/L 08/24/12 13:00 08/27/12 19:50 1Cadmium 0.000854 U

0.00500 0.00140 mg/L 08/24/12 13:00 08/27/12 19:50 1Chromium 0.00140 U

0.00500 0.00136 mg/L 08/24/12 13:00 08/27/12 19:50 1Cobalt 0.00136 U

0.0100 0.00200 mg/L 08/24/12 13:00 08/27/12 19:50 1Copper 0.00200 U

0.250 0.101 mg/L 08/24/12 13:00 08/27/12 19:50 1Iron 0.101 U

0.00500 0.000733 mg/L 08/24/12 13:00 08/27/12 19:50 1Lead 0.000733 U

0.00500 0.00140 mg/L 08/24/12 13:00 08/27/12 19:50 1Molybdenum 0.445

0.00500 0.00217 mg/L 08/24/12 13:00 08/27/12 19:50 1Nickel 0.00366 J

0.00500 0.00108 mg/L 08/24/12 13:00 08/28/12 22:55 1Selenium 0.0925

0.00200 0.000693 mg/L 08/24/12 13:00 08/27/12 19:50 1Thallium 0.000693 U

0.0250 0.00355 mg/L 08/24/12 13:00 08/27/12 19:50 1Zinc 0.00355 U

Method: 7470A - Mercury (CVAA)

MQL MDL

Mercury 0.000130 U 0.00200 0.000130 mg/L 08/27/12 11:00 08/27/12 17:21 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Method: 7470A - Mercury (CVAA) - Dissolved

MQL MDL

Mercury 0.000130 U 0.00200 0.000130 mg/L 08/27/12 11:00 08/27/12 17:24 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

General Chemistry

MQL MDL

Total Dissolved Solids 2240 10.0 10.0 mg/L 08/27/12 13:00 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

3.00 3.00 mg/L 08/27/12 10:45 1Total Suspended Solids 3.00 U

1.00 0.192 mg/L 08/27/12 13:59 10Chloride 269

0.500 0.200 mg/L 08/24/12 19:46 4Nitrate Nitrite as N 3.27

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SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Lab Sample ID: 560-34376-1Client Sample ID: MW-1 Matrix: WaterDate Collected: 08/23/12 13:15

Date Received: 08/24/12 09:20

General Chemistry (Continued)

MQL MDL

Sulfate 852 1.00 0.377 mg/L 08/24/12 19:46 4

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.100 0.0200 mg/L 09/08/12 09:45 5Fluoride 3.22

0.0500 0.0131 mg/L 08/27/12 11:15 1Sulfide 0.0131 U

1.00 0.285 mg/L 09/07/12 11:33 1Total Organic Carbon 1.98

5.00 5.00 mg/L 08/28/12 09:50 1Total Alkalinity as CaCO3 328

Lab Sample ID: 560-34376-2Client Sample ID: MW-2 Matrix: WaterDate Collected: 08/23/12 14:00

Date Received: 08/24/12 09:20

Method: 6020 - Metals (ICP/MS)

MQL MDL

Aluminum 0.0225 U 0.0500 0.0225 mg/L 08/24/12 13:00 08/27/12 16:14 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.00500 0.00161 mg/L 08/24/12 13:00 08/27/12 16:14 1Antimony 0.00161 U

0.00500 0.00109 mg/L 08/24/12 13:00 08/27/12 16:14 1Arsenic 0.796

0.00500 0.000810 mg/L 08/24/12 13:00 08/27/12 16:14 1Barium 0.0595

0.00200 0.000854 mg/L 08/24/12 13:00 08/27/12 16:14 1Cadmium 0.000854 U

0.500 0.198 mg/L 08/24/12 13:00 08/27/12 16:14 1Calcium 128

0.00500 0.00140 mg/L 08/24/12 13:00 08/27/12 16:14 1Chromium 0.00140 U

0.00500 0.00136 mg/L 08/24/12 13:00 08/27/12 16:14 1Cobalt 0.00136 U

0.0100 0.00200 mg/L 08/24/12 13:00 08/27/12 16:14 1Copper 0.00200 U

0.250 0.101 mg/L 08/24/12 13:00 08/27/12 16:14 1Iron 0.101 U

0.00500 0.000733 mg/L 08/24/12 13:00 08/27/12 16:14 1Lead 0.000733 U

0.500 0.113 mg/L 08/24/12 13:00 08/27/12 16:14 1Magnesium 55.7

0.0500 0.0116 mg/L 08/24/12 13:00 08/27/12 16:14 1Manganese 0.0859

0.00500 0.00140 mg/L 08/24/12 13:00 08/27/12 16:14 1Molybdenum 0.708

0.00500 0.00217 mg/L 08/24/12 13:00 08/27/12 16:14 1Nickel 0.00459 J

1.00 0.407 mg/L 08/24/12 13:00 08/28/12 19:03 1Potassium 68.6

0.00500 0.00108 mg/L 08/24/12 13:00 08/28/12 19:03 1Selenium 0.00546

1.00 0.727 mg/L 08/24/12 13:00 08/27/12 16:14 1Sodium 508

0.00200 0.000693 mg/L 08/24/12 13:00 08/27/12 16:14 1Thallium 0.000693 U

0.0250 0.00355 mg/L 08/24/12 13:00 08/27/12 16:14 1Zinc 0.00355 U

Method: 6020 - Metals (ICP/MS) - Dissolved

MQL MDL

Antimony 0.00161 U 0.00500 0.00161 mg/L 08/24/12 13:00 08/27/12 19:56 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.00500 0.00109 mg/L 08/24/12 13:00 08/27/12 19:56 1Arsenic 0.803

0.00500 0.000810 mg/L 08/24/12 13:00 08/27/12 19:56 1Barium 0.0608

0.00200 0.000854 mg/L 08/24/12 13:00 08/27/12 19:56 1Cadmium 0.000854 U

0.00500 0.00140 mg/L 08/24/12 13:00 08/27/12 19:56 1Chromium 0.00140 U

0.00500 0.00136 mg/L 08/24/12 13:00 08/27/12 19:56 1Cobalt 0.00136 U

0.0100 0.00200 mg/L 08/24/12 13:00 08/27/12 19:56 1Copper 0.00200 U

0.250 0.101 mg/L 08/24/12 13:00 08/27/12 19:56 1Iron 0.101 U

0.00500 0.000733 mg/L 08/24/12 13:00 08/27/12 19:56 1Lead 0.000733 U

0.00500 0.00140 mg/L 08/24/12 13:00 08/27/12 19:56 1Molybdenum 0.732

0.00500 0.00217 mg/L 08/24/12 13:00 08/27/12 19:56 1Nickel 0.00437 J

0.00500 0.00108 mg/L 08/24/12 13:00 08/28/12 23:22 1Selenium 0.00506

0.00200 0.000693 mg/L 08/24/12 13:00 08/27/12 19:56 1Thallium 0.000693 U

0.0250 0.00355 mg/L 08/24/12 13:00 08/27/12 19:56 1Zinc 0.00355 U

TestAmerica Corpus Christi Page 8 of 29 9/10/2012

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Lab Sample ID: 560-34376-2Client Sample ID: MW-2 Matrix: WaterDate Collected: 08/23/12 14:00

Date Received: 08/24/12 09:20

Method: 7470A - Mercury (CVAA)

MQL MDL

Mercury 0.000130 U 0.00200 0.000130 mg/L 08/27/12 11:00 08/27/12 17:33 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Method: 7470A - Mercury (CVAA) - Dissolved

MQL MDL

Mercury 0.000130 U 0.00200 0.000130 mg/L 08/27/12 11:00 08/27/12 17:36 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

General Chemistry

MQL MDL

Total Dissolved Solids 2630 10.0 10.0 mg/L 08/27/12 13:00 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

3.00 3.00 mg/L 08/27/12 10:45 1Total Suspended Solids 3.00 U

1.00 0.192 mg/L 08/27/12 14:21 10Chloride 236

0.500 0.200 mg/L 08/24/12 20:08 4Nitrate Nitrite as N 0.800 U

1.00 0.377 mg/L 08/24/12 20:08 4Sulfate 1150

0.100 0.0200 mg/L 09/08/12 09:45 5Fluoride 3.42

0.0500 0.0131 mg/L 08/27/12 11:15 1Sulfide 0.0131 U

1.00 0.285 mg/L 09/07/12 11:33 1Total Organic Carbon 2.76

5.00 5.00 mg/L 08/28/12 09:50 1Total Alkalinity as CaCO3 379

Lab Sample ID: 560-34376-3Client Sample ID: MW-9S Matrix: WaterDate Collected: 08/23/12 14:50

Date Received: 08/24/12 09:20

Method: 6020 - Metals (ICP/MS)

MQL MDL

Aluminum 0.0225 U 0.0500 0.0225 mg/L 08/27/12 09:30 08/29/12 18:03 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.00500 0.00161 mg/L 08/27/12 09:30 08/29/12 18:03 1Antimony 0.00340 J

0.00500 0.00109 mg/L 08/27/12 09:30 08/29/12 18:03 1Arsenic 0.809

0.00500 0.000810 mg/L 08/27/12 09:30 08/29/12 18:03 1Barium 0.0260

0.00200 0.000854 mg/L 08/27/12 09:30 08/29/12 18:03 1Cadmium 0.000854 U

0.500 0.198 mg/L 08/27/12 09:30 08/29/12 18:03 1Calcium 141

0.00500 0.00140 mg/L 08/27/12 09:30 08/29/12 18:03 1Chromium 0.00140 U

0.00500 0.00136 mg/L 08/27/12 09:30 08/29/12 18:03 1Cobalt 0.00136 U

0.0100 0.00200 mg/L 08/27/12 09:30 08/29/12 18:03 1Copper 0.00200 U

0.250 0.101 mg/L 08/27/12 09:30 08/29/12 18:03 1Iron 0.101 U

0.00500 0.000733 mg/L 08/27/12 09:30 08/29/12 18:03 1Lead 0.000733 U

0.500 0.113 mg/L 08/27/12 09:30 08/29/12 18:03 1Magnesium 63.8

0.0500 0.0116 mg/L 08/27/12 09:30 08/29/12 18:03 1Manganese 0.337

0.00500 0.00140 mg/L 08/27/12 09:30 08/29/12 18:03 1Molybdenum 0.481

0.00500 0.00217 mg/L 08/27/12 09:30 08/29/12 18:03 1Nickel 0.00349 J

1.00 0.407 mg/L 08/27/12 09:30 08/29/12 18:03 1Potassium 41.8

0.00500 0.00108 mg/L 08/27/12 09:30 08/29/12 18:03 1Selenium 0.0719

1.00 0.727 mg/L 08/27/12 09:30 08/29/12 18:03 1Sodium 485

0.00200 0.000693 mg/L 08/27/12 09:30 08/29/12 18:03 1Thallium 0.000693 U

0.0250 0.00355 mg/L 08/27/12 09:30 08/29/12 18:03 1Zinc 0.00355 U

Method: 6020 - Metals (ICP/MS) - Dissolved

MQL MDL

Antimony 0.00334 J 0.00500 0.00161 mg/L 08/27/12 09:30 08/29/12 18:08 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.00500 0.00109 mg/L 08/27/12 09:30 08/29/12 18:08 1Arsenic 0.787

0.00500 0.000810 mg/L 08/27/12 09:30 08/29/12 18:08 1Barium 0.0248

0.00200 0.000854 mg/L 08/27/12 09:30 08/29/12 18:08 1Cadmium 0.000854 U

0.00500 0.00140 mg/L 08/27/12 09:30 08/29/12 18:08 1Chromium 0.00140 U

TestAmerica Corpus Christi Page 9 of 29 9/10/2012

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Lab Sample ID: 560-34376-3Client Sample ID: MW-9S Matrix: WaterDate Collected: 08/23/12 14:50

Date Received: 08/24/12 09:20

Method: 6020 - Metals (ICP/MS) - Dissolved (Continued)

MQL MDL

Cobalt 0.00136 U 0.00500 0.00136 mg/L 08/27/12 09:30 08/29/12 18:08 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.0100 0.00200 mg/L 08/27/12 09:30 08/29/12 18:08 1Copper 0.00200 U

0.250 0.101 mg/L 08/27/12 09:30 08/29/12 18:08 1Iron 0.101 U

0.00500 0.000733 mg/L 08/27/12 09:30 08/29/12 18:08 1Lead 0.000733 U

0.00500 0.00140 mg/L 08/27/12 09:30 08/29/12 18:08 1Molybdenum 0.468

0.00500 0.00217 mg/L 08/27/12 09:30 08/29/12 18:08 1Nickel 0.00348 J

0.00500 0.00108 mg/L 08/27/12 09:30 08/29/12 18:08 1Selenium 0.0719

0.00200 0.000693 mg/L 08/27/12 09:30 08/29/12 18:08 1Thallium 0.000693 U

0.0250 0.00355 mg/L 08/27/12 09:30 08/29/12 18:08 1Zinc 0.00355 U

Method: 7470A - Mercury (CVAA)

MQL MDL

Mercury 0.000130 U 0.00200 0.000130 mg/L 08/27/12 11:00 08/27/12 17:38 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Method: 7470A - Mercury (CVAA) - Dissolved

MQL MDL

Mercury 0.000130 U 0.00200 0.000130 mg/L 08/28/12 09:30 08/28/12 14:25 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

General Chemistry

MQL MDL

Total Dissolved Solids 2270 10.0 10.0 mg/L 08/27/12 13:00 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

3.00 3.00 mg/L 08/27/12 10:45 1Total Suspended Solids 3.00 U

1.00 0.192 mg/L 08/27/12 14:43 10Chloride 287

0.500 0.200 mg/L 08/24/12 20:30 4Nitrate Nitrite as N 2.12

1.00 0.377 mg/L 08/24/12 20:30 4Sulfate 988

0.100 0.0200 mg/L 09/08/12 09:45 5Fluoride 2.95

0.0500 0.0131 mg/L 08/27/12 11:15 1Sulfide 0.0131 U

1.00 0.285 mg/L 09/07/12 11:33 1Total Organic Carbon 2.02

5.00 5.00 mg/L 08/28/12 09:50 1Total Alkalinity as CaCO3 318

Lab Sample ID: 560-34376-4Client Sample ID: FD082312B Matrix: WaterDate Collected: 08/23/12 00:00

Date Received: 08/24/12 09:20

Method: 6020 - Metals (ICP/MS)

MQL MDL

Aluminum 0.0225 U 0.0500 0.0225 mg/L 08/27/12 09:30 08/29/12 18:14 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.00500 0.00161 mg/L 08/27/12 09:30 08/29/12 18:14 1Antimony 0.00356 J

0.00500 0.00109 mg/L 08/27/12 09:30 08/29/12 18:14 1Arsenic 0.844

0.00500 0.000810 mg/L 08/27/12 09:30 08/29/12 18:14 1Barium 0.0259

0.00200 0.000854 mg/L 08/27/12 09:30 08/29/12 18:14 1Cadmium 0.000854 U

0.500 0.198 mg/L 08/27/12 09:30 08/29/12 18:14 1Calcium 145

0.00500 0.00140 mg/L 08/27/12 09:30 08/29/12 18:14 1Chromium 0.00140 U

0.00500 0.00136 mg/L 08/27/12 09:30 08/29/12 18:14 1Cobalt 0.00136 U

0.0100 0.00200 mg/L 08/27/12 09:30 08/29/12 18:14 1Copper 0.00200 U

0.250 0.101 mg/L 08/27/12 09:30 08/29/12 18:14 1Iron 0.101 U

0.00500 0.000733 mg/L 08/27/12 09:30 08/29/12 18:14 1Lead 0.000733 U

0.500 0.113 mg/L 08/27/12 09:30 08/29/12 18:14 1Magnesium 66.9

0.0500 0.0116 mg/L 08/27/12 09:30 08/29/12 18:14 1Manganese 0.357

0.00500 0.00140 mg/L 08/27/12 09:30 08/29/12 18:14 1Molybdenum 0.498

0.00500 0.00217 mg/L 08/27/12 09:30 08/29/12 18:14 1Nickel 0.00379 J

1.00 0.407 mg/L 08/27/12 09:30 08/29/12 18:14 1Potassium 43.4

TestAmerica Corpus Christi Page 10 of 29 9/10/2012

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Lab Sample ID: 560-34376-4Client Sample ID: FD082312B Matrix: WaterDate Collected: 08/23/12 00:00

Date Received: 08/24/12 09:20

Method: 6020 - Metals (ICP/MS) (Continued)

MQL MDL

Selenium 0.0757 0.00500 0.00108 mg/L 08/27/12 09:30 08/29/12 18:14 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

1.00 0.727 mg/L 08/27/12 09:30 08/30/12 13:00 10Sodium 591

0.00200 0.000693 mg/L 08/27/12 09:30 08/29/12 18:14 1Thallium 0.000693 U

0.0250 0.00355 mg/L 08/27/12 09:30 08/29/12 18:14 1Zinc 0.00355 U

Method: 6020 - Metals (ICP/MS) - Dissolved

MQL MDL

Antimony 0.00320 J 0.00500 0.00161 mg/L 08/27/12 09:30 08/29/12 18:19 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

0.00500 0.00109 mg/L 08/27/12 09:30 08/29/12 18:19 1Arsenic 0.829

0.00500 0.000810 mg/L 08/27/12 09:30 08/29/12 18:19 1Barium 0.0259

0.00200 0.000854 mg/L 08/27/12 09:30 08/29/12 18:19 1Cadmium 0.000854 U

0.00500 0.00140 mg/L 08/27/12 09:30 08/29/12 18:19 1Chromium 0.00140 U

0.00500 0.00136 mg/L 08/27/12 09:30 08/29/12 18:19 1Cobalt 0.00136 U

0.0100 0.00200 mg/L 08/27/12 09:30 08/29/12 18:19 1Copper 0.00200 U

0.250 0.101 mg/L 08/27/12 09:30 08/29/12 18:19 1Iron 0.101 U

0.00500 0.000733 mg/L 08/27/12 09:30 08/29/12 18:19 1Lead 0.000733 U

0.00500 0.00140 mg/L 08/27/12 09:30 08/29/12 18:19 1Molybdenum 0.486

0.00500 0.00217 mg/L 08/27/12 09:30 08/29/12 18:19 1Nickel 0.00352 J

0.00500 0.00108 mg/L 08/27/12 09:30 08/29/12 18:19 1Selenium 0.0734

0.00200 0.000693 mg/L 08/27/12 09:30 08/29/12 18:19 1Thallium 0.000693 U

0.0250 0.00355 mg/L 08/27/12 09:30 08/29/12 18:19 1Zinc 0.00355 U

Method: 7470A - Mercury (CVAA)

MQL MDL

Mercury 0.000130 U 0.00200 0.000130 mg/L 08/28/12 09:30 08/28/12 14:27 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

Method: 7470A - Mercury (CVAA) - Dissolved

MQL MDL

Mercury 0.000130 U 0.00200 0.000130 mg/L 08/28/12 09:30 08/28/12 14:30 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

General Chemistry

MQL MDL

Total Dissolved Solids 2190 10.0 10.0 mg/L 08/27/12 13:00 1

Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier

3.00 3.00 mg/L 08/27/12 10:45 1Total Suspended Solids 3.00 U

1.00 0.192 mg/L 08/27/12 15:05 10Chloride 247

0.500 0.200 mg/L 08/24/12 20:52 4Nitrate Nitrite as N 2.12

1.00 0.377 mg/L 08/24/12 20:52 4Sulfate 959

0.100 0.0200 mg/L 09/08/12 09:45 5Fluoride 3.21

0.0500 0.0131 mg/L 08/27/12 11:15 1Sulfide 0.0131 U

1.00 0.285 mg/L 09/07/12 11:33 1Total Organic Carbon 2.13

5.00 5.00 mg/L 08/28/12 09:50 1Total Alkalinity as CaCO3 305

TestAmerica Corpus Christi Page 11 of 29 9/10/2012

QC Sample Results

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Method: 6020 - Metals (ICP/MS)

Client Sample ID: Method BlankLab Sample ID: MB 560-77260/1-A

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77341 Prep Batch: 77260

MQL MDL

Aluminum 0.0225 U 0.0500 0.0225 mg/L 08/24/12 13:00 08/27/12 13:17 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

0.00161 U 0.001610.00500 mg/L 08/24/12 13:00 08/27/12 13:17 1Antimony

0.00109 U 0.001090.00500 mg/L 08/24/12 13:00 08/27/12 13:17 1Arsenic

0.000810 U 0.0008100.00500 mg/L 08/24/12 13:00 08/27/12 13:17 1Barium

0.000854 U 0.0008540.00200 mg/L 08/24/12 13:00 08/27/12 13:17 1Cadmium

0.198 U 0.1980.500 mg/L 08/24/12 13:00 08/27/12 13:17 1Calcium

0.00140 U 0.001400.00500 mg/L 08/24/12 13:00 08/27/12 13:17 1Chromium

0.00136 U 0.001360.00500 mg/L 08/24/12 13:00 08/27/12 13:17 1Cobalt

0.101 U 0.1010.250 mg/L 08/24/12 13:00 08/27/12 13:17 1Iron

0.000733 U 0.0007330.00500 mg/L 08/24/12 13:00 08/27/12 13:17 1Lead

0.113 U 0.1130.500 mg/L 08/24/12 13:00 08/27/12 13:17 1Magnesium

0.00140 U 0.001400.00500 mg/L 08/24/12 13:00 08/27/12 13:17 1Molybdenum

0.00217 U 0.002170.00500 mg/L 08/24/12 13:00 08/27/12 13:17 1Nickel

0.407 U 0.4071.00 mg/L 08/24/12 13:00 08/27/12 13:17 1Potassium

0.727 U 0.7271.00 mg/L 08/24/12 13:00 08/27/12 13:17 1Sodium

0.000693 U 0.0006930.00200 mg/L 08/24/12 13:00 08/27/12 13:17 1Thallium

0.00355 U 0.003550.0250 mg/L 08/24/12 13:00 08/27/12 13:17 1Zinc

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77260/2-A

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77341 Prep Batch: 77260

Aluminum 2.00 1.897 mg/L 95 80 - 120

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Antimony 2.00 1.952 mg/L 98 80 - 120

Arsenic 2.00 1.860 mg/L 93 80 - 120

Barium 0.200 0.2005 mg/L 100 80 - 120

Cadmium 0.200 0.1921 mg/L 96 80 - 120

Calcium 8.00 7.892 mg/L 99 80 - 120

Chromium 0.200 0.1863 mg/L 93 80 - 120

Cobalt 0.200 0.1900 mg/L 95 80 - 120

Iron 8.00 7.503 mg/L 94 80 - 120

Lead 2.00 2.104 mg/L 105 80 - 120

Magnesium 8.00 7.665 mg/L 96 80 - 120

Molybdenum 0.200 0.2044 mg/L 102 80 - 120

Nickel 0.200 0.1897 mg/L 95 80 - 120

Potassium 20.0 19.61 mg/L 98 80 - 120

Thallium 2.00 2.153 mg/L 108 80 - 120

Zinc 0.200 0.1874 mg/L 94 80 - 120

Client Sample ID: Method BlankLab Sample ID: MB 560-77263/1-A

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77341 Prep Batch: 77263

MQL MDL

Antimony 0.00161 U 0.00500 0.00161 mg/L 08/24/12 13:00 08/27/12 16:20 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

0.00109 U 0.001090.00500 mg/L 08/24/12 13:00 08/27/12 16:20 1Arsenic

0.000810 U 0.0008100.00500 mg/L 08/24/12 13:00 08/27/12 16:20 1Barium

0.000854 U 0.0008540.00200 mg/L 08/24/12 13:00 08/27/12 16:20 1Cadmium

0.00140 U 0.001400.00500 mg/L 08/24/12 13:00 08/27/12 16:20 1Chromium

TestAmerica Corpus Christi Page 12 of 29 9/10/2012

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Method: 6020 - Metals (ICP/MS) (Continued)

Client Sample ID: Method BlankLab Sample ID: MB 560-77263/1-A

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77341 Prep Batch: 77263

MQL MDL

Cobalt 0.00136 U 0.00500 0.00136 mg/L 08/24/12 13:00 08/27/12 16:20 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

0.00200 U 0.002000.0100 mg/L 08/24/12 13:00 08/27/12 16:20 1Copper

0.101 U 0.1010.250 mg/L 08/24/12 13:00 08/27/12 16:20 1Iron

0.000733 U 0.0007330.00500 mg/L 08/24/12 13:00 08/27/12 16:20 1Lead

0.004813 J 0.001400.00500 mg/L 08/24/12 13:00 08/27/12 16:20 1Molybdenum

0.00217 U 0.002170.00500 mg/L 08/24/12 13:00 08/27/12 16:20 1Nickel

0.000693 U 0.0006930.00200 mg/L 08/24/12 13:00 08/27/12 16:20 1Thallium

0.00355 U 0.003550.0250 mg/L 08/24/12 13:00 08/27/12 16:20 1Zinc

Client Sample ID: Method BlankLab Sample ID: MB 560-77263/1-A

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77403 Prep Batch: 77263

MQL MDL

Selenium 0.00108 U 0.00500 0.00108 mg/L 08/24/12 13:00 08/28/12 20:04 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77263/2-A

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77341 Prep Batch: 77263

Antimony 2.00 1.898 mg/L 95 80 - 120

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Arsenic 2.00 1.870 mg/L 94 80 - 120

Barium 0.200 0.1957 mg/L 98 80 - 120

Cadmium 0.200 0.1939 mg/L 97 80 - 120

Chromium 0.200 0.1832 mg/L 92 80 - 120

Cobalt 0.200 0.1832 mg/L 92 80 - 120

Copper 0.200 0.1843 mg/L 92 80 - 120

Iron 8.00 7.259 mg/L 91 80 - 120

Lead 2.00 2.097 mg/L 105 80 - 120

Molybdenum 0.200 0.2013 mg/L 101 80 - 120

Nickel 0.200 0.1877 mg/L 94 80 - 120

Thallium 2.00 2.154 mg/L 108 80 - 120

Zinc 0.200 0.1848 mg/L 92 80 - 120

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77263/2-A

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77403 Prep Batch: 77263

Selenium 2.00 1.946 mg/L 97 80 - 120

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Client Sample ID: Method BlankLab Sample ID: MB 560-77291/1-A

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77445 Prep Batch: 77291

MQL MDL

Aluminum 0.0225 U 0.0500 0.0225 mg/L 08/27/12 09:30 08/29/12 15:55 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

0.00161 U 0.001610.00500 mg/L 08/27/12 09:30 08/29/12 15:55 1Antimony

0.00109 U 0.001090.00500 mg/L 08/27/12 09:30 08/29/12 15:55 1Arsenic

0.000810 U 0.0008100.00500 mg/L 08/27/12 09:30 08/29/12 15:55 1Barium

TestAmerica Corpus Christi Page 13 of 29 9/10/2012

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Method: 6020 - Metals (ICP/MS) (Continued)

Client Sample ID: Method BlankLab Sample ID: MB 560-77291/1-A

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77445 Prep Batch: 77291

MQL MDL

Cadmium 0.000854 U 0.00200 0.000854 mg/L 08/27/12 09:30 08/29/12 15:55 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

0.198 U 0.1980.500 mg/L 08/27/12 09:30 08/29/12 15:55 1Calcium

0.00140 U 0.001400.00500 mg/L 08/27/12 09:30 08/29/12 15:55 1Chromium

0.00136 U 0.001360.00500 mg/L 08/27/12 09:30 08/29/12 15:55 1Cobalt

0.00200 U 0.002000.0100 mg/L 08/27/12 09:30 08/29/12 15:55 1Copper

0.101 U 0.1010.250 mg/L 08/27/12 09:30 08/29/12 15:55 1Iron

0.000733 U 0.0007330.00500 mg/L 08/27/12 09:30 08/29/12 15:55 1Lead

0.113 U 0.1130.500 mg/L 08/27/12 09:30 08/29/12 15:55 1Magnesium

0.0116 U 0.01160.0500 mg/L 08/27/12 09:30 08/29/12 15:55 1Manganese

0.001437 J 0.001400.00500 mg/L 08/27/12 09:30 08/29/12 15:55 1Molybdenum

0.00217 U 0.002170.00500 mg/L 08/27/12 09:30 08/29/12 15:55 1Nickel

0.407 U 0.4071.00 mg/L 08/27/12 09:30 08/29/12 15:55 1Potassium

0.00108 U 0.001080.00500 mg/L 08/27/12 09:30 08/29/12 15:55 1Selenium

0.727 U 0.7271.00 mg/L 08/27/12 09:30 08/29/12 15:55 1Sodium

0.000693 U 0.0006930.00200 mg/L 08/27/12 09:30 08/29/12 15:55 1Thallium

0.00355 U 0.003550.0250 mg/L 08/27/12 09:30 08/29/12 15:55 1Zinc

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77291/2-A

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77445 Prep Batch: 77291

Aluminum 50.0 53.68 mg/L 107 80 - 120

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Antimony 0.500 0.4429 mg/L 89 80 - 120

Arsenic 0.500 0.4883 mg/L 98 80 - 120

Barium 0.500 0.5376 mg/L 108 80 - 120

Cadmium 0.500 0.5208 mg/L 104 80 - 120

Calcium 50.0 51.03 mg/L 102 80 - 120

Chromium 0.500 0.4978 mg/L 100 80 - 120

Cobalt 0.500 0.4651 mg/L 93 80 - 120

Copper 0.500 0.4838 mg/L 97 80 - 120

Iron 50.0 44.79 mg/L 90 80 - 120

Lead 0.500 0.5217 mg/L 104 80 - 120

Magnesium 50.0 51.25 mg/L 103 80 - 120

Manganese 5.00 4.955 mg/L 99 80 - 120

Molybdenum 0.500 0.5158 mg/L 103 80 - 120

Nickel 0.500 0.4708 mg/L 94 80 - 120

Potassium 50.0 50.82 mg/L 102 80 - 120

Selenium 0.500 0.5101 mg/L 102 80 - 120

Sodium 50.0 48.13 mg/L 96 80 - 120

Thallium 0.200 0.1978 mg/L 99 80 - 120

Zinc 0.500 0.4698 mg/L 94 80 - 120

TestAmerica Corpus Christi Page 14 of 29 9/10/2012

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Method: 7470A - Mercury (CVAA)

Client Sample ID: Method BlankLab Sample ID: MB 560-77300/1-A

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77344 Prep Batch: 77300

MQL MDL

Mercury 0.000130 U 0.00200 0.000130 mg/L 08/27/12 11:00 08/27/12 16:22 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77300/2-A

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77344 Prep Batch: 77300

Mercury 0.00500 0.004900 mg/L 98 80 - 120

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Client Sample ID: Method BlankLab Sample ID: MB 560-77366/4-A

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77382 Prep Batch: 77366

MQL MDL

Mercury 0.000130 U 0.00200 0.000130 mg/L 08/28/12 09:30 08/28/12 13:38 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77366/5-A

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77382 Prep Batch: 77366

Mercury 0.00500 0.005420 mg/L 108 80 - 120

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Method: 160.1 - Solids, Total Dissolved (TDS)

Client Sample ID: Method BlankLab Sample ID: MB 560-77313/1

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77313

MQL MDL

Total Dissolved Solids 10.0 U 10.0 10.0 mg/L 08/27/12 13:00 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77313/2

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77313

Total Dissolved Solids 2250 2156 mg/L 96 80 - 120

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Client Sample ID: MW-2Lab Sample ID: 560-34376-2 MS

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77313

Total Dissolved Solids 2630 2250 4790 mg/L 96 75 - 125

Analyte

MS MS

DUnitResult Qualifier %Rec

Spike

Added

Sample

Result

Sample

Qualifier

%Rec.

Limits

TestAmerica Corpus Christi Page 15 of 29 9/10/2012

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Method: 160.1 - Solids, Total Dissolved (TDS) (Continued)

Client Sample ID: MW-2Lab Sample ID: 560-34376-2 MSD

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77313

Total Dissolved Solids 2630 2250 4530 mg/L 85 75 - 125 6 20

Analyte

MSD MSD

DUnitResult Qualifier %Rec

Spike

Added

Sample

Result

Sample

Qualifier

%Rec.

Limits LimitRPD

RPD

Method: 160.2 - Solids, Total Suspended (TSS)

Client Sample ID: Method BlankLab Sample ID: MB 560-77324/25

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77324

MQL MDL

Total Suspended Solids 3.00 U 3.00 3.00 mg/L 08/27/12 10:45 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77324/26

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77324

Total Suspended Solids 200 203.5 mg/L 102 80 - 120

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Method: 300.0 - Anions, Ion Chromatography

Client Sample ID: Method BlankLab Sample ID: MB 560-77281/3

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77281

MQL MDL

Chloride 0.192 U 1.00 0.192 mg/L 08/24/12 13:10 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

0.200 U 0.2000.500 mg/L 08/24/12 13:10 1Nitrate Nitrite as N

0.377 U 0.3771.00 mg/L 08/24/12 13:10 1Sulfate

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77281/4

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77281

Chloride 10.0 9.899 mg/L 99 90 - 110

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Sulfate 20.0 20.08 mg/L 100 90 - 110

Nitrite as N 5.00 5.120 mg/L 102 90 - 110

Nitrate as N 5.00 4.952 mg/L 99 90 - 110

Client Sample ID: Method BlankLab Sample ID: MB 560-77349/3

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77349

MQL MDL

Chloride 0.192 U 1.00 0.192 mg/L 08/27/12 12:53 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

0.200 U 0.2000.500 mg/L 08/27/12 12:53 1Nitrate Nitrite as N

0.377 U 0.3771.00 mg/L 08/27/12 12:53 1Sulfate

TestAmerica Corpus Christi Page 16 of 29 9/10/2012

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Method: 300.0 - Anions, Ion Chromatography (Continued)

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77349/4

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77349

Chloride 10.0 9.954 mg/L 100 90 - 110

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Sulfate 20.0 20.20 mg/L 101 90 - 110

Nitrite as N 5.00 5.119 mg/L 102 90 - 110

Nitrate as N 5.00 5.026 mg/L 101 90 - 110

Method: 340.2 - Fluoride

Client Sample ID: Method BlankLab Sample ID: MB 560-77793/3

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77793

MQL MDL

Fluoride 0.0200 U 0.100 0.0200 mg/L 09/08/12 09:45 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77793/4

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77793

Fluoride 0.800 0.7930 mg/L 99 85 - 115

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Method: 376.2 - Sulfide

Client Sample ID: Method BlankLab Sample ID: MB 560-77329/3

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77329

MQL MDL

Sulfide 0.0131 U 0.0500 0.0131 mg/L 08/27/12 11:15 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77329/4

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77329

Sulfide 0.511 0.5730 mg/L 112 80 - 120

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Client Sample ID: FD082312BLab Sample ID: 560-34376-4 MS

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77329

Sulfide 0.0131 U 0.511 0.5220 mg/L 102 75 - 125

Analyte

MS MS

DUnitResult Qualifier %Rec

Spike

Added

Sample

Result

Sample

Qualifier

%Rec.

Limits

Client Sample ID: FD082312BLab Sample ID: 560-34376-4 MSD

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77329

Sulfide 0.0131 U 0.511 0.5210 mg/L 102 75 - 125 0 20

Analyte

MSD MSD

DUnitResult Qualifier %Rec

Spike

Added

Sample

Result

Sample

Qualifier

%Rec.

Limits LimitRPD

RPD

TestAmerica Corpus Christi Page 17 of 29 9/10/2012

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Method: 415.1 - TOC

Client Sample ID: Method BlankLab Sample ID: MB 560-77796/3

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77796

MQL MDL

Total Organic Carbon 0.285 U 1.00 0.285 mg/L 09/07/12 11:33 1

MB MB

Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77796/4

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77796

Total Organic Carbon 25.0 22.10 mg/L 88 80 - 120

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Method: SM 2320B - Alkalinity

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77387/26

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77387

Total Alkalinity as CaCO3 100 94.40 mg/L 94 85 - 115

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77387/40

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77387

Total Alkalinity as CaCO3 100 94.20 mg/L 94 85 - 115

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

Client Sample ID: Lab Control SampleLab Sample ID: LCS 560-77387/51

Matrix: Water Prep Type: Total/NA

Analysis Batch: 77387

Total Alkalinity as CaCO3 100 94.20 mg/L 94 85 - 115

Analyte

LCS LCS

DUnitResult Qualifier %Rec

Spike

Added

%Rec.

Limits

TestAmerica Corpus Christi Page 18 of 29 9/10/2012

QC Association Summary

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Metals

Prep Batch: 77260

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 3010A560-34376-1 MW-1 Total/NA

Water 3010A560-34376-2 MW-2 Total/NA

Water 3010ALCS 560-77260/2-A Lab Control Sample Total/NA

Water 3010AMB 560-77260/1-A Method Blank Total/NA

Prep Batch: 77263

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 3010A560-34376-1 MW-1 Dissolved

Water 3010A560-34376-2 MW-2 Dissolved

Water 3010ALCS 560-77263/2-A Lab Control Sample Total/NA

Water 3010AMB 560-77263/1-A Method Blank Total/NA

Prep Batch: 77291

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 3010A560-34376-3 MW-9S Total/NA

Water 3010A560-34376-3 MW-9S Dissolved

Water 3010A560-34376-4 FD082312B Total/NA

Water 3010A560-34376-4 FD082312B Dissolved

Water 3010ALCS 560-77291/2-A Lab Control Sample Total/NA

Water 3010AMB 560-77291/1-A Method Blank Total/NA

Prep Batch: 77300

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 7470A560-34376-1 MW-1 Total/NA

Water 7470A560-34376-1 MW-1 Dissolved

Water 7470A560-34376-2 MW-2 Total/NA

Water 7470A560-34376-2 MW-2 Dissolved

Water 7470A560-34376-3 MW-9S Total/NA

Water 7470ALCS 560-77300/2-A Lab Control Sample Total/NA

Water 7470AMB 560-77300/1-A Method Blank Total/NA

Analysis Batch: 77341

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 6020 77260560-34376-1 MW-1 Total/NA

Water 6020 77263560-34376-1 MW-1 Dissolved

Water 6020 77260560-34376-2 MW-2 Total/NA

Water 6020 77263560-34376-2 MW-2 Dissolved

Water 6020 77260LCS 560-77260/2-A Lab Control Sample Total/NA

Water 6020 77263LCS 560-77263/2-A Lab Control Sample Total/NA

Water 6020 77260MB 560-77260/1-A Method Blank Total/NA

Water 6020 77263MB 560-77263/1-A Method Blank Total/NA

Analysis Batch: 77344

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 7470A 77300560-34376-1 MW-1 Total/NA

Water 7470A 77300560-34376-1 MW-1 Dissolved

Water 7470A 77300560-34376-2 MW-2 Total/NA

Water 7470A 77300560-34376-2 MW-2 Dissolved

Water 7470A 77300560-34376-3 MW-9S Total/NA

Water 7470A 77300LCS 560-77300/2-A Lab Control Sample Total/NA

Water 7470A 77300MB 560-77300/1-A Method Blank Total/NA

TestAmerica Corpus Christi Page 19 of 29 9/10/2012

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Metals (Continued)

Prep Batch: 77366

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 7470A560-34376-3 MW-9S Dissolved

Water 7470A560-34376-4 FD082312B Total/NA

Water 7470A560-34376-4 FD082312B Dissolved

Water 7470ALCS 560-77366/5-A Lab Control Sample Total/NA

Water 7470AMB 560-77366/4-A Method Blank Total/NA

Analysis Batch: 77382

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 7470A 77366560-34376-3 MW-9S Dissolved

Water 7470A 77366560-34376-4 FD082312B Total/NA

Water 7470A 77366560-34376-4 FD082312B Dissolved

Water 7470A 77366LCS 560-77366/5-A Lab Control Sample Total/NA

Water 7470A 77366MB 560-77366/4-A Method Blank Total/NA

Analysis Batch: 77403

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 6020 77260560-34376-1 MW-1 Total/NA

Water 6020 77263560-34376-1 MW-1 Dissolved

Water 6020 77260560-34376-2 MW-2 Total/NA

Water 6020 77263560-34376-2 MW-2 Dissolved

Water 6020 77263LCS 560-77263/2-A Lab Control Sample Total/NA

Water 6020 77263MB 560-77263/1-A Method Blank Total/NA

Analysis Batch: 77445

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 6020 77291560-34376-3 MW-9S Total/NA

Water 6020 77291560-34376-3 MW-9S Dissolved

Water 6020 77291560-34376-4 FD082312B Total/NA

Water 6020 77291560-34376-4 FD082312B Dissolved

Water 6020 77291LCS 560-77291/2-A Lab Control Sample Total/NA

Water 6020 77291MB 560-77291/1-A Method Blank Total/NA

Analysis Batch: 77514

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 6020 77291560-34376-4 FD082312B Total/NA

General Chemistry

Analysis Batch: 77281

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 300.0560-34376-1 MW-1 Total/NA

Water 300.0560-34376-2 MW-2 Total/NA

Water 300.0560-34376-3 MW-9S Total/NA

Water 300.0560-34376-4 FD082312B Total/NA

Water 300.0LCS 560-77281/4 Lab Control Sample Total/NA

Water 300.0MB 560-77281/3 Method Blank Total/NA

Analysis Batch: 77313

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 160.1560-34376-1 MW-1 Total/NA

Water 160.1560-34376-2 MW-2 Total/NA

Water 160.1560-34376-2 MS MW-2 Total/NA

TestAmerica Corpus Christi Page 20 of 29 9/10/2012

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

General Chemistry (Continued)

Analysis Batch: 77313 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 160.1560-34376-2 MSD MW-2 Total/NA

Water 160.1560-34376-3 MW-9S Total/NA

Water 160.1560-34376-4 FD082312B Total/NA

Water 160.1LCS 560-77313/2 Lab Control Sample Total/NA

Water 160.1MB 560-77313/1 Method Blank Total/NA

Analysis Batch: 77324

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 160.2560-34376-1 MW-1 Total/NA

Water 160.2560-34376-2 MW-2 Total/NA

Water 160.2560-34376-3 MW-9S Total/NA

Water 160.2560-34376-4 FD082312B Total/NA

Water 160.2LCS 560-77324/26 Lab Control Sample Total/NA

Water 160.2MB 560-77324/25 Method Blank Total/NA

Analysis Batch: 77329

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 376.2560-34376-1 MW-1 Total/NA

Water 376.2560-34376-2 MW-2 Total/NA

Water 376.2560-34376-3 MW-9S Total/NA

Water 376.2560-34376-4 FD082312B Total/NA

Water 376.2560-34376-4 MS FD082312B Total/NA

Water 376.2560-34376-4 MSD FD082312B Total/NA

Water 376.2LCS 560-77329/4 Lab Control Sample Total/NA

Water 376.2MB 560-77329/3 Method Blank Total/NA

Analysis Batch: 77349

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 300.0560-34376-1 MW-1 Total/NA

Water 300.0560-34376-2 MW-2 Total/NA

Water 300.0560-34376-3 MW-9S Total/NA

Water 300.0560-34376-4 FD082312B Total/NA

Water 300.0LCS 560-77349/4 Lab Control Sample Total/NA

Water 300.0MB 560-77349/3 Method Blank Total/NA

Analysis Batch: 77387

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water SM 2320B560-34376-1 MW-1 Total/NA

Water SM 2320B560-34376-2 MW-2 Total/NA

Water SM 2320B560-34376-3 MW-9S Total/NA

Water SM 2320B560-34376-4 FD082312B Total/NA

Water SM 2320BLCS 560-77387/26 Lab Control Sample Total/NA

Water SM 2320BLCS 560-77387/40 Lab Control Sample Total/NA

Water SM 2320BLCS 560-77387/51 Lab Control Sample Total/NA

Analysis Batch: 77793

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 340.2560-34376-1 MW-1 Total/NA

Water 340.2560-34376-2 MW-2 Total/NA

Water 340.2560-34376-3 MW-9S Total/NA

Water 340.2560-34376-4 FD082312B Total/NA

Water 340.2LCS 560-77793/4 Lab Control Sample Total/NA

TestAmerica Corpus Christi Page 21 of 29 9/10/2012

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

General Chemistry (Continued)

Analysis Batch: 77793 (Continued)

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 340.2MB 560-77793/3 Method Blank Total/NA

Analysis Batch: 77796

Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch

Water 415.1560-34376-1 MW-1 Total/NA

Water 415.1560-34376-2 MW-2 Total/NA

Water 415.1560-34376-3 MW-9S Total/NA

Water 415.1560-34376-4 FD082312B Total/NA

Water 415.1LCS 560-77796/4 Lab Control Sample Total/NA

Water 415.1MB 560-77796/3 Method Blank Total/NA

TestAmerica Corpus Christi Page 22 of 29 9/10/2012

Certification Summary Client: Malcolm Pirnie, Inc. Invoice to Arcadis TestAmerica Job ID: 560-34376-1

Project/Site: 06835001.2012.07F52/ASARCO SDG: August 2012

Laboratory: TestAmerica Corpus Christi All certifications held by this laboratory are listed. Not all certifications are applicable to this report.

Authority Program EPA Region Certification ID Expiration Date

Kansas 10-31-12E-103627NELAC

Oklahoma State Program 6 9968 08-31-13

Texas NELAC 6 T104704210-12-8 03-31-13

USDA Federal P330-11-00060 02-03-14

TestAmerica Corpus Christi Page 23 of 29 9/10/2012

Method Summary

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Method Method Description LaboratoryProtocol

SW8466020 Metals (ICP/MS) TAL CC

SW8467470A Mercury (CVAA) TAL CC

MCAWW160.1 Solids, Total Dissolved (TDS) TAL CC

MCAWW160.2 Solids, Total Suspended (TSS) TAL CC

MCAWW300.0 Anions, Ion Chromatography TAL CC

MCAWW340.2 Fluoride TAL CC

MCAWW376.2 Sulfide TAL CC

MCAWW415.1 TOC TAL CC

SMSM 2320B Alkalinity TAL CC

Protocol References:

MCAWW = "Methods For Chemical Analysis Of Water And Wastes", EPA-600/4-79-020, March 1983 And Subsequent Revisions.

SM = "Standard Methods For The Examination Of Water And Wastewater", SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates.

Laboratory References:

TAL CC = TestAmerica Corpus Christi, 1733 N. Padre Island Drive, Corpus Christi, TX 78408, TEL (361)289-2673

TestAmerica Corpus Christi Page 24 of 29 9/10/2012

Sample Summary

SDG: August 2012Project/Site: 06835001.2012.07F52/ASARCO

Lab Sample ID Client Sample ID…